FAQ

FAQ

Q1: Unable to connect http://localhost:8888

A1: The web server is provided by dreamview, so please check if dreamview process is running correctly:

• After execute bash scripts/bootstrap.sh wait for one minutes, then check if dreamview process still running with ps/pgrep.
• If it's not running, manually start dreamview with gdb: gdb --args /apollo/bazel-bin/modules/dreamview/dreamview --flagfile=/apollo/modules/dreamview/conf/dreamview.conf or source scripts/apollo_base.sh; start_gdb dreamview and find the backtrace.
• If you got something related with libpcl from gdb backtrace like this:

Core was generated by `/apollo/bazel-bin/modules/dreamview/dreamview --flagfile=/apollo/modules/dreamv'.
Program terminated with signal SIGILL, Illegal instruction.
#0  0x00007f79ebd32bec in double boost::math::detail::erf_inv_imp<double, boost::math::policies::policy<boost::math::policies::promote_float<false>, boost::math::policies::promote_double<false>, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy> >(double const&, double const&, boost::math::policies::policy<boost::math::policies::promote_float<false>, boost::math::policies::promote_double<false>, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy> const&, mpl_::int_<64> const*) () from /usr/local/lib/libpcl_sample_consensus.so.1.7
(gdb) bt
#0  0x00007f79ebd32bec in double boost::math::detail::erf_inv_imp<double, boost::math::policies::policy<boost::math::policies::promote_float<false>, boost::math::policies::promote_double<false>, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy> >(double const&, double const&, boost::math::policies::policy<boost::math::policies::promote_float<false>, boost::math::policies::promote_double<false>, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy> const&, mpl_::int_<64> const*) () from /usr/local/lib/libpcl_sample_consensus.so.1.7
#1  0x00007f79ebcf7f1e in _GLOBAL__sub_I_sac.cpp () from /usr/local/lib/libpcl_sample_consensus.so.1.7
#2  0x00007f79f3e1a2da in call_init (l=<optimized out>, argc=argc@entry=2, argv=argv@entry=0x7ffc7bc11c78, env=env@entry=0x7ffc7bc11c90) at dl-init.c:78
#3  0x00007f79f3e1a3c3 in call_init (env=<optimized out>, argv=<optimized out>, argc=<optimized out>, l=<optimized out>) at dl-init.c:36
#4  _dl_init (main_map=0x7f79f402e1c8, argc=2, argv=0x7ffc7bc11c78, env=0x7ffc7bc11c90) at dl-init.c:126
#5  0x00007f79f3e0b29a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#6  0x0000000000000002 in ?? ()
#7  0x00007ffc7bc134bd in ?? ()
#8  0x00007ffc7bc134eb in ?? ()
#9  0x0000000000000000 in ?? ()
(gdb) q

Probably you need to rebuild pcl lib by yourself and replace the one in the docker.

• If it's running, then check the logs under data/log/dreamview.[INFO, WARNING,ERROR], and check if the port 8888 is used by dreamview with lsof -i :8888, also you need to make you are not access that address behind a firewall/proxy.

Q2: rosbag command not found

A2: If you got this error when you're inside docker env, you're probably using the user 'root' for running Apollo.

For use root , you may need to do some additional work: source /apollo/scripts/apollo_base.sh (this script include the ros environment setup procedure source /home/tmp/ros/setup.bash(for dev docker), or you can only source the ros env setup script as well).

Usually, this could be avoid by running Apollo as a normal user, since it will be configured into .bashrc automatically.

Q3: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.37/containers/json: dial unix /var/run/docker.sock: connect: permission denied

A3:

sudo usermod -a -G docker $USER
newgrp docker
docker ps

Q4: ERROR: gcc: internal compiler error: Killed (program cc1plus)

A4: bash apollo.sh build -j N

Reduce the number of N if you got a error gcc: internal compiler error: Killed . This is because the system memory is running out(OOM) lowmemorykiller is triggered.

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